United States
Hong KongCredits beat deductions, and refundable credits beat both
A deduction reduces taxable income, saving your marginal rate. A credit reduces tax dollar for dollar. A refundable credit can produce a refund beyond tax owed; a non-refundable one only reduces tax to zero.
One comparison, and it decides which planning move is worth more.
The arithmetic
A USD 1,000 deduction for someone in the 22 per cent bracket saves 220. A USD 1,000 credit saves 1,000.
The deduction is worth more to a higher earner and less to a lower one. The credit is worth the same to both, which is why credits are used where policy favors lower incomes and are usually phased out at higher ones. Credits are flat.
Refundable or not
| Type | Effect |
|---|---|
| Non-refundable | Reduces tax to zero, no further |
| Refundable | Can produce a refund beyond tax owed |
| Partially refundable | A specified portion can be refunded |
A non-refundable credit is worth nothing to someone with no tax liability, which is the distinction questions test with a low-income scenario. Check the liability first.
The credits to know
- Child tax credit - per qualifying child, partially refundable, phased out at higher incomes.
- Credit for other dependents - smaller, non-refundable.
- Child and dependent care credit - for care costs enabling work, non-refundable.
- American Opportunity credit - first four years of post-secondary education, partially refundable, per student.
- Lifetime Learning credit - broader eligibility, non-refundable, per return rather than per student.
- Earned income credit - refundable, for lower-income workers.
- Saver's credit - for retirement contributions by lower-income taxpayers.
- Foreign tax credit - for tax paid to another country.
The two education credits are the pair questions use, and the differences are the examinable part: per student against per return, four years against unlimited, partially refundable against not.
You cannot claim an education credit for expenses paid with a tax-free 529 distribution. Coordinating the two - paying some expenses from taxable funds to preserve credit eligibility - is a real planning technique and a recurring question.
Above the line beats below
Among deductions, an above-the-line adjustment is worth more than an itemized deduction of the same size, because it reduces adjusted gross income.
AGI drives medical expense floors, charitable limits, credit phase-outs, IRA deductibility, the net investment income tax and Medicare surcharges. A deduction that reduces AGI reduces several other things at once.
The ordering
Credits reduce tax after it is calculated, and non-refundable credits are applied in a specified order so that refundable ones are not wasted. Order matters.
For the exam, the ranking is what matters: a credit beats a deduction of the same size, a refundable credit beats a non-refundable one, and an above-the-line deduction beats an itemized one.
Dollar limits and rate thresholds here are indexed annually and several were changed by the 2025 reconciliation act. Confirm the current figure against the IRS before relying on it.
Common questions
What is the difference between a credit and a deduction?
A deduction reduces taxable income, saving your marginal rate. A credit reduces tax dollar for dollar, so it is worth the same to everyone regardless of bracket.
What is a refundable credit?
One that can produce a refund beyond the tax owed. A non-refundable credit only reduces tax to zero and is worth nothing to someone with no liability.
What is the difference between the two education credits?
The American Opportunity credit is per student, limited to the first four years and partially refundable. The Lifetime Learning credit is per return, has no year limit and is non-refundable.
Can you claim an education credit and use a 529?
Not for the same expenses. Coordinating them - paying some costs from taxable funds to preserve credit eligibility - is a genuine planning technique and a recurring question.
Why is an above-the-line deduction better?
It reduces adjusted gross income, which drives medical expense floors, charitable limits, credit phase-outs, IRA deductibility, the net investment income tax and Medicare surcharges.